Jim, To make matters more interesting, this is a right hand drive car. It has a Spit frame under it(ends were chopped off). The car, from what I'm told, was made up of a combination of RHD & LHD parts. Now what went with what is anyone's guess. I suspect the Gearbox came from the LHD car. The diff begins with FD I believe. So I put a late Spit differential in the car & it should be back to US spec as far as the speedo is concerned, but what about the speedo itself? It's in MPH so I think it's a US spec speedo? The tyres are bigger than stock so I would think it would read slow. Lots of questions, but I guess the big thing is to get the wife's car back together!
I think I'm gonna fill'r up with oil & see if it leaks. The idea of pressing off the bearings and the dreaded pinion seal doesn't really excite me too much. Cheers, Todd Bermudez #596 Cincinnati, OH '68 GT6 MK1 RHD '66 GT6 MK1 RHD '67 GT6 MK1 LHD --- On Fri, 3/27/09, Jim Muller <[email protected]> wrote: > From: Jim Muller <[email protected]> > Subject: Re: [Spits] Separating spring from Diff > To: [email protected], [email protected], "NASS Spitfire" <[email protected]> > Date: Friday, March 27, 2009, 9:36 PM > On 27 Mar 2009 at 15:39, Todd > Bermudez wrote: > > > Guess I should mention, this GT6 does have an > overdrive > > gearbox...maybe it won't make a bit of difference > then? > > Ah! If the gearbox and diff were original, or if both > were swapped > out by someone so that the diff matches the gearbox as the > factory > intended, then you probably had a 3.89 after all. > > If someone had switched to an OD gerarbox but not swapped > the diff > then you had European gearing. (Lord knows what your > speedometer > would have read though! Did the PO who did the swap > change its drive > gear too? Nobody knows.) In that case you will > notice the revs > increase on the highway, but with the new diff it will be > back to > what the factory wanted you to have. > > I was noting on my drive home today that in 4th the speed > is double > the tach reading (e.g. 4000rpm == 80mph, though my tires > make the car > a bit slower than it reads), and at those speeds the > speedometer and > tach needles are parallel. As far as I know I have a > 3.27 diff; I've > never bothered to look up the speed vs. rpm figures. > Well, actually > I have but I never bothered to remember them. > > -- > Jim Muller > [email protected] > '80 Spitfire, '70 GT6+ > _______________________________________________ > > Support Team.Net http://www.team.net/donate.html > > [email protected] > http://autox.team.net/mailman/listinfo/spitfires > > http://www.team.net/archive _______________________________________________ Support Team.Net http://www.team.net/donate.html [email protected] http://autox.team.net/mailman/listinfo/spitfires http://www.team.net/archive
